Fixes for handling of MockDBusThreadManager::GetSystemBus().

chrome/browser/chromeos/login/network_screen_browsertest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/string16.h"
 #include "base/string_number_conversions.h"
@@ skipping 34 matching lines @@
 class NetworkScreenTest : public WizardInProcessBrowserTest {
  public:
   NetworkScreenTest(): WizardInProcessBrowserTest("network"),
                        mock_network_library_(NULL) {
   }
 
  protected:
   virtual void SetUpInProcessBrowserTestFixture() {
     MockDBusThreadManager* mock_dbus_thread_manager =
         new MockDBusThreadManager;
+    EXPECT_CALL(*mock_dbus_thread_manager, GetSystemBus())
+        .WillRepeatedly(Return(reinterpret_cast<dbus::Bus*>(NULL)));
     DBusThreadManager::InitializeForTesting(mock_dbus_thread_manager);
     cros_mock_->InitStatusAreaMocks();
     mock_network_library_ = cros_mock_->mock_network_library();
     MockSessionManagerClient* mock_session_manager_client =
         mock_dbus_thread_manager->mock_session_manager_client();
     cellular_.reset(new NetworkDevice("cellular"));
     EXPECT_CALL(*mock_session_manager_client, EmitLoginPromptReady())
         .Times(1);
     EXPECT_CALL(*mock_session_manager_client, RetrieveDevicePolicy(_))
         .Times(AnyNumber());
@@ skipping 221 matching lines @@
   // EXPECT_FALSE(actor_->IsConnecting());
   network_screen_->OnConnectionTimeout();
 
   // Close infobubble with error message - it makes the test stable.
   // EXPECT_FALSE(actor_->IsContinueEnabled());
   // EXPECT_FALSE(actor_->IsConnecting());
   // actor_->ClearErrors();
 }
 
 }  // namespace chromeos